Vascular imaging: endoleak after EVAR: practice question

A Radiology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Radiology · Vascular imaging: endoleak after EVAR

Sample item

A patient with endovascular repair of an abdominal aortic aneurysm returns for follow-up. CT angiography shows contrast within the aneurysm sac outside the stent graft. What is this finding called?

AThrombosis of the graft limbBPseudoaneurysmCNormal post-procedure appearanceDEndoleak

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Endoleak

Persistent flow into the aneurysm sac after endovascular repair is an endoleak, and it keeps the sac pressurised, with a risk of growth or rupture. Surveillance with CT angiography or contrast ultrasound is routine.

Option by option

A. Thrombosis of the graft limb
Thrombosis would show absent flow in the limb of the graft.
B. Pseudoaneurysm
A pseudoaneurysm is a contained rupture of a vessel wall.
C. Normal post-procedure appearance
Contrast in the sac is not a normal finding.
D. Endoleak (correct)
Correct. Contrast outside the graft but within the sac is an endoleak.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is D, Endoleak. Persistent flow into the aneurysm sac after endovascular repair is an endoleak, and it keeps the sac pressurised, with a risk of growth or rupture.

Why is "Thrombosis of the graft limb" not the answer?

Thrombosis would show absent flow in the limb of the graft.

Why is "Pseudoaneurysm" not the answer?

A pseudoaneurysm is a contained rupture of a vessel wall.

Why is "Normal post-procedure appearance" not the answer?

Contrast in the sac is not a normal finding.

What concept does this question test?

It tests Vascular imaging: endoleak after EVAR in Radiology. Surveillance with CT angiography or contrast ultrasound is routine.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Vascular imaging: endoleak after EVAR?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.